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<div id="winchm_template_top">
	<div id="winchm_template_button"><A href="gflags_commands.htm" title="Previous topic"><img id="winchm_template_prev" alt="Previous topic" src="../template2/btn_prev_n.gif" border="0"></a><A href="gflags_and_pageheap.htm" title="Next topic"><img id="winchm_template_next" alt="Next topic" src="../template2/btn_next_n.gif" border="0"></a></div>
	<div id="winchm_template_navigation">Help &gt; 
<A href="introduction6.htm">Debugging Tools for Windows (WinDbg, KD, CDB, NTSD)</A> &gt; <A href="debugging_resources.htm">Debugging Resources</A> &gt; <A href="extra_tools.htm">Tools Included in Debugging Tools for Windows</A> &gt; <A href="gflags.htm">GFlags</A> &gt; </div>
	<div id="winchm_template_title">GFlags Flag Table</div>
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<div id="winchm_template_container">
	<div id="winchm_template_content"><div id="mainSection"><p>The following table lists the flags that GFlags changes, the hexadecimal value and abbreviation for each flag, and the destination (R for registry, K for kernel, I for image file) in which the flag is valid.</p>
<p>For a detailed description of each flag, see the <a href="#Bookmark57">Global Flag Reference</a>.</p>
<p>For information about using GFlags, see <a href="#Bookmark37">GFlags Overview</a> and <a href="#Bookmark38">GFlags Details</a>.</p>
<div class="alert"><b>Important</b>    Pool tagging is permanently enabled in Windows Server 2003 and later versions of Windows. On these systems, the <b>Enable pool tagging</b> check box on the <b>Global Flags</b> dialog box is dimmed, and commands to enable or disable pool tagging fail.</div>
<div> </div>
<div class="alert"><b>Note</b>  The symbolic name of each flag is provided for reference only. Because symbolic names change, they are not a reliable identifier of a global flag.</div>
<div> </div>
<table>
<tr>
<th>Description</th>
<th>Symbolic Name</th>
<th>Hexadecimal Value</th>
<th>Abbreviation</th>
<th>Destination</th>
</tr>
<tr>
<td>
<p><a href="#Bookmark58">Buffer DbgPrint Output</a></p>
</td>
<td>
<p>FLG_DISABLE_DBGPRINT</p>
</td>
<td>
<p>0x08000000</p>
</td>
<td>
<p>ddp</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark59">Create kernel mode stack trace database</a></p>
</td>
<td>
<p>FLG_KERNEL_STACK_TRACE_DB</p>
</td>
<td>
<p>0x2000</p>
</td>
<td>
<p>kst</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark60">Create user mode stack trace database</a></p>
</td>
<td>
<p>FLG_USER_STACK_TRACE_DB</p>
</td>
<td>
<p>0x1000</p>
</td>
<td>
<p>ust</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark61">Debug initial command</a></p>
</td>
<td>
<p>FLG_DEBUG_INITIAL_COMMAND</p>
</td>
<td>
<p>0x04</p>
</td>
<td>
<p>dic</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark62">Debug WinLogon</a></p>
</td>
<td>
<p>FLG_DEBUG_INITIAL_COMMAND_EX</p>
</td>
<td>
<p>0x04000000</p>
</td>
<td>
<p>dwl</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark63">Disable heap coalesce on free</a></p>
</td>
<td>
<p>FLG_HEAP_DISABLE_COALESCING</p>
</td>
<td>
<p>0x00200000</p>
</td>
<td>
<p>dhc</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark64">Disable paging of kernel stacks</a></p>
</td>
<td>
<p>FLG_DISABLE_PAGE_KERNEL_STACKS</p>
</td>
<td>
<p>0x080000</p>
</td>
<td>
<p>dps</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark65">Disable protected DLL verification</a></p>
</td>
<td>
<p>FLG_DISABLE_PROTDLLS</p>
</td>
<td>
<p>0x80000000</p>
</td>
<td>
<p>dpd</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark66">Disable stack extension</a></p>
</td>
<td>
<p>FLG_DISABLE_STACK_EXTENSION</p>
</td>
<td>
<p>0x010000</p>
</td>
<td>
<p>dse</p>
</td>
<td>
<p>I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark67">Early critical section event creation</a></p>
</td>
<td>
<p>FLG_CRITSEC_EVENT_CREATION</p>
</td>
<td>
<p>0x10000000</p>
</td>
<td>
<p>cse</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark68">Enable application verifier</a></p>
</td>
<td>
<p>FLG_APPLICATION_VERIFIER</p>
</td>
<td>
<p>0x0100</p>
</td>
<td>
<p>vrf</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark69">Enable bad handles detection</a></p>
</td>
<td>
<p>FLG_ENABLE_HANDLE_EXCEPTIONS</p>
</td>
<td>
<p>0x40000000</p>
</td>
<td>
<p>bhd</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark70">Enable close exception</a></p>
</td>
<td>
<p>FLG_ENABLE_CLOSE_EXCEPTIONS</p>
</td>
<td>
<p>0x400000</p>
</td>
<td>
<p>ece</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark71">Enable debugging of Win32 subsystem</a></p>
</td>
<td>
<p>FLG_ENABLE_CSRDEBUG</p>
</td>
<td>
<p>0x020000</p>
</td>
<td>
<p>d32</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark72">Enable exception logging</a></p>
</td>
<td>
<p>FLG_ENABLE_EXCEPTION_LOGGING</p>
</td>
<td>
<p>0x800000</p>
</td>
<td>
<p>eel</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark73">Enable heap free checking</a></p>
</td>
<td>
<p>FLG_HEAP_ENABLE_FREE_CHECK</p>
</td>
<td>
<p>0x20</p>
</td>
<td>
<p>hfc</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark74">Enable heap parameter checking</a></p>
</td>
<td>
<p>FLG_HEAP_VALIDATE_PARAMETERS</p>
</td>
<td>
<p>0x40</p>
</td>
<td>
<p>hpc</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark75">Enable heap tagging</a></p>
</td>
<td>
<p>FLG_HEAP_ENABLE_TAGGING</p>
</td>
<td>
<p>0x0800</p>
</td>
<td>
<p>htg</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark76">Enable heap tagging by DLL</a></p>
</td>
<td>
<p>FLG_HEAP_ENABLE_TAG_BY_DLL</p>
</td>
<td>
<p>0x8000</p>
</td>
<td>
<p>htd</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark77">Enable heap tail checking</a></p>
</td>
<td>
<p>FLG_HEAP_ENABLE_TAIL_CHECK</p>
</td>
<td>
<p>0x10</p>
</td>
<td>
<p>htc</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark78">Enable heap validation on call</a></p>
</td>
<td>
<p>FLG_HEAP_VALIDATE_ALL</p>
</td>
<td>
<p>0x80</p>
</td>
<td>
<p>hvc</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark79">Enable loading of kernel debugger symbols</a></p>
</td>
<td>
<p>FLG_ENABLE_KDEBUG_SYMBOL_LOAD</p>
</td>
<td>
<p>0x040000</p>
</td>
<td>
<p>ksl</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark80">Enable object handle type tagging</a></p>
</td>
<td>
<p>FLG_ENABLE_HANDLE_TYPE_TAGGING</p>
</td>
<td>
<p>0x01000000</p>
</td>
<td>
<p>eot</p>
</td>
<td>
<p>R,K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark81">Enable page heap</a></p>
</td>
<td>
<p>FLG_HEAP_PAGE_ALLOCS</p>
</td>
<td>
<p>0x02000000</p>
</td>
<td>
<p>hpa</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p>
<dl>
<dt><a href="#Bookmark82">Enable pool tagging</a></dt>
<dt>(Windows 2000 and Windows XP only) </dt>
</dl>
</p>
</td>
<td>
<p>FLG_POOL_ENABLE_TAGGING</p>
</td>
<td>
<p>0x0400</p>
</td>
<td>
<p>ptg</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark84">Enable system critical breaks</a></p>
</td>
<td>
<p>FLG_ENABLE_SYSTEM_CRIT_BREAKS</p>
</td>
<td>
<p>0x100000</p>
</td>
<td>
<p>scb</p>
</td>
<td>
<p>R, K, I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark85">Load image using large pages if possible</a></p>
</td>
<td></td>
<td></td>
<td>
<p>lpg</p>
</td>
<td>
<p>I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark86">Maintain a list of objects for each type</a></p>
</td>
<td>
<p>FLG_MAINTAIN_OBJECT_TYPELIST</p>
</td>
<td>
<p>0x4000</p>
</td>
<td>
<p>otl</p>
</td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark83">Enable silent process exit monitoring</a></p>
</td>
<td>
<p>FLG_MONITOR_SILENT_PROCESS_EXIT </p>
</td>
<td>
<p>0x200</p>
</td>
<td></td>
<td>
<p>R</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark87">Object Reference Tracing</a></p>
<p>(Windows Vista and later)</p>
</td>
<td></td>
<td></td>
<td></td>
<td>
<p>R, K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark88">Show loader snaps</a></p>
</td>
<td>
<p>FLG_SHOW_LDR_SNAPS</p>
</td>
<td>
<p>0x02</p>
</td>
<td>
<p>sls</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark89">Special Pool</a></p>
</td>
<td></td>
<td></td>
<td>
<p>spp</p>
</td>
<td>
<p>R</p>
<p>R,K (Windows Vista and later)</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark90">Stop on exception</a></p>
</td>
<td>
<p>FLG_STOP_ON_EXCEPTION</p>
</td>
<td>
<p>0x01</p>
</td>
<td>
<p>soe</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark91">Stop on hung GUI</a></p>
</td>
<td>
<p>FLG_STOP_ON_HUNG_GUI</p>
</td>
<td>
<p>0x08</p>
</td>
<td>
<p>shg</p>
</td>
<td>
<p>K</p>
</td>
</tr>
<tr>
<td>
<p><a href="#Bookmark92">Stop on unhandled user-mode exception</a></p>
</td>
<td>
<p>FLG_STOP_ON_UNHANDLED_EXCEPTION</p>
</td>
<td>
<p>0x20000000</p>
</td>
<td>
<p>sue</p>
</td>
<td>
<p>R,K,I</p>
</td>
</tr>
</table>
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